Hot-air motor



l. I. WILSON.

HOT AIR MOTOR.

APPLICATION FILED FEB. 19, I920.

Patehted Oct. 26,1920.

,p '2 2 I ii I /4 f /7 /6 4 w W M pair-so stares IRA I. WILSON, OF NEW CASTLE, PENNSYLYAN'IAJ I HOT-AIR MQTOR.

Specification of Letters Patent. Patented O t 26 1920" Application filed February 19, 1920. Serial No. 359,952.

T all whom it may concern.

Be it known that I, IRA 1. WILSON, a citizen of the United States, residing at New Castle, in the county of Lawrence, State of Pennsylvania, have invented certain new and useful Improvements in Hot-Air Motors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

This invention relates to new and useful improvements in motors and particularly to motors for driving light machinery, such as toys.

One object of the present invention is to provide a novel and improved motor which is adapted to be placed over a hot air register, a radiator, or other source of heat, and which will be driven by the rising hot air.

Another object is to provide anovel and improved motor of the character mentioned which will be simple and cheap in its construction, and effective and durable in operation.

Other objects and advantages will be ap parent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a side elevation of a motor made in accordance with the invention.

Fig. 2 is a top plan .view of the same.

Fig. 3 is a rear elevation of the motor.

Fig. 4 is a horizontal sectional view taken intermediately of the condensing drum, on the line 44 of Fig. 1.

Referring particularly to the accompany ing drawing, represents an upwardly tapering hollow metal body which has both its upper and lower ends open, the lower,

or larger end, being adapted to be rested on the floor over a hot air register, or to be placed over a hot water or steam radiator. The device is also operable over a stove, whether gas or coal, or any other source of rising air whether hot or cold. The body, as shown in the drawing, is a truncated pyramid, but may be of any other shape or outline desired, the general outline being upwardly tapered. The body is preferably formed from a single sheet of metal folded or bent into the shape shown and having the vertical seam 11 extending down one side thereof. Covering this scam, and extending from the bottom to the top of the tapering body 10, is a metal strip 12, of greater thickness than the body, and having its upper end extending horizontally across the top of the body and. thence downwardly ashort distance on the other side, as shown overlapping por at 13. The strip, and the tions of'the seam of the body, are secured together by means of the bolts 14. A bolt 15 secures the other end of the strip 12 to the last-mentioned side'of the body.

A second metal strip 16 is secured outwardly of the upper portion of the strip 12,

and by means of the uppermost of the bolts 14, said strip being extended upwardly and horizontally, as at 17 over and parallel with thehorizontal portion of the first strip 12. A vertical shaft 18, having its opposite ends tapered,- as at 19, is disposed between the horizontal portions of the strips 12 and 16, and has; its tapered ends seated in correspondingly formed sockets 20 and 21, formed in'the said portions of the strips 12 and 16. The upper portion of the shaft is threaded and has engaged thereon a pair of at 24, or any other desired point thereon, for

engagement of a belt which is adapted to drive the desired machines, toys, or the like. A series of grooved pulleys may be secured to the shaft, and of different diamenuts 22, between which is clamped aradially ters, whereby the speed of the machine driven may be varied by shifting the belt from one pulley to another.

Pivotally mounted on the horizontal portion of the strip 12 is a brake lever 26 which is. adapted to be swung into engagement with the pulley 24 to stop the motor or to 7 check the speed thereof.

When the device is placed over a source of r1s1ng hotalr the a1r will flow upwardly through the body and cause the bladed wheel to rotate, and the toy driven, through the medium of the belt. The body, by reason of its upward tapering shape, causes a condensing or concentration of the heat, so that the hot air will be directed against the blades of the fan wheel with great force.

What is claimed is: I An air motor comprising a hollow openended and upwardly tapering body having a longitudinal seam at one side, a strip of material secured to and covering the seam, 1,10

the parallel portions of the strips and having its ends j ournaled in said Portions.

n testimony whereof, I aflix my signature in the presence of two witnesses.

Witnesses:

' R. B. Monnow, L. O. MANTZ.

IRA I. WILSON. 

